About: http://webisa.webdatacommons.org/154373410

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Gases such as hydrogen sulphide, methane and carbon dioxide can escape as the material is agitated.
http://www.w3.org/ns/prov#wasQuotedFrom	irishtimes.com